Reinforced concrete groin.



G. 0. CASE.

REINFORCED CONCRETE sRolN.

APPLICATION FILED SEPT.18, 19|5. 1, 177,381 Patented Mar. 28, 1916.

A TTOR/VEYS UniTiin STATES PATENT ernten. f'

GERALD OTLEY CASE, OF kNXT'Z0`RK, N. Y., ASSIGNOR CASE COAST PROTECTION CORPORATION, OF NEW YORK, NQ Y., A CORPORATION OF YORK.

REINFORCED CONCRETE GROIN.

Application nietY september ie, v19715. serial Ne. 51,380.

To aZZJwLom it may concern Be it known that I, GERALD O. CASE, a subject ofthe King of Great Britain, and a resident of the city of New York, boroughV of Manhattan, in thecounty and State of `New York, Ahave invented a new andImthe like.

y Among the objects of ithe invention, therefore, is to provide a means for erecting va shore groin from an assemblage of similar units, each of which is adaptedto be'self-v supporting and self-locking'in practice and which may be put in place with facility eitherabove or below the surface ofthe water.

With the foregoing and other objects in view, but without limiting the invention to the specific construction illustrated, 'the novelty resides in the general arrangement and combination of parts` hereinafter more fully set forth and claimed and illustrated in the accompanying drawings in which- Figure 1 is a side elevation. partly in longitudinal section, of a, preferred4 form of the invention; Fig. 2 is a plan view ofthe same; Figs. 3 and 4 are plan views of modified forms of the improvement; and Fig. 5v lis. a transverse. sectional detail ony the line 5-5 of Fig. 2. y p

Referring more particularly to the drawings, I show a series of connected box-like elements 10 adapted to be arranged end toV end and extend from the bank or shore line outwardly to any desired distance in a verti` wish to be unnecessarily limited. Suffice it to say,however, that it is made of a strong, substantial structure, and of l sufficient weight to sink automatically into the water and into thel bed ofthe body of water as,

for instance, intothe sand indicated at S. lThe side members 11 at the sea end ofthe Jbox 'project somewhat beyond the sea end wall 12` and thereby, in connection with the adjacent end wall, constitutea seat for ,the

ladja'centland end of the next adjacent box. i

The corners formed by Athe'acute Vangularly shaped lower ends of the box (are in the nature of spurs, projecting into thevbed of the body of water, thereby tending to 'lock the box in fixed position.

From' what has been set forth.- it will beV apparent that each box is adapted .to settle automatically until rit'rests substantially upon the body of sand or the like and yet is'possible for any one of the boxesto be removed or replaced,

if desired,` without disturbing 'any other elements ofthe groin. At the land end of the'groin 'is provided aV foundation member 14 which may be anchored in position by means. of piles 15 or other suitable structures` the same'being. provided with out-l wardly projecting fianges and anadjacent wall 17 adapted to receive the land end of the first standai'dfelement 10 'inthe manner already set forth. p 4 Y Any of the elements'. either the foundation member 14' or bof'x elementl() may serve 'to support post-likeJ uprights l 18 having grooves 19 adapted to receive longitudinal planks Vor panels Q0 for the purpose of building up the height of the groin as occasion may require, A Y

A` groin maybe erected. by the use of the means herein set forth, either above or below the surface of the water. In .other words, the operation may continue at high tide as well'as low. The nature of each box is such that it may be fioated over the place of deposit and there allowed to sink by tilling with water through any one or more holes 21 formed in the bottoni. Obviously these holes may be plugged up temporarily for the purpose of floating the device over the site therefor. VVhen'the device is filling with water, it is obvious that it may be guidedk and held to its proper position with a minimum amount of effort, the land end of each device being guided by the Ysea end of the next preceding element, and the spur outer ends thereof will settle and hold the device in place. When the elements are thus settled into permanent position, they readily become lled with sand orthe like deposited'therein by the action of the Water and are thereby ballasted in such a vmanner Y as to'- become a permanent iixture. The box structures maybe provided with any suitable number of transverse tie bars 22 ex'- `tending Vfrom. the top ofone side 11 to the top ofthe other .side for the `purpose of vone of the elements to be lifted so' as tobe replaced by another, if desired. As shown `in Fig. 3,' one end ot each section is provided With a tongue 28 coperatingwith a dovetail, groove 24 in the-next adjacent element, the tongue being formed at the outer or sea end lot each element. In Fig. 4, however,

either end of each element may be provided f ;With an undercut or dove-tailkchannel 25 into Which is slidably fitted the enlarged end 26 oit' the next adjacent element.k These de-v tail Figs. 3 and 4, arek intended toset forth the fact that anydes'ired means forvlocking the adjacent elements may bef'resorted to, and it is obvious that the additional lfeatures, such as the uprights 18, cross ties 22,

and the like, may be employed in connection `therewith as Well as inthe structure shownin Figs. 1 'and 2.

' The posts or uprights 18 .are preferably Ymadeseparate from the main portions of the groin and are adapted to cooperate. with one or the other of the sidewalls 11 as indicatedl in Fig. 5, each post having a li 27 lapping over the outside ot' the Wall 11 and having a `leg onthe inside terminating inafoot 28 projecting into a hole 21 Where- Vby the post is locked in position. The transverse bars `22 maybe locatedat any desired place, but as indicated in Fig. 2 they may be arranged to .brace ythe posts, preventing Copies of this patent may be obtained for five cents each, byaddressing `the Commissioner of Patents, f

sition. l

Vmovement thereof-lengthwise of the groiny in addition to the` interlockingconnection g between the-foot128 and: the `hole 21.

I claim 1. The herein described concrete :groin i structure Lelement comprising la box-like def vice having side and end Walls and an inte-` gral bottom arranged intermediate the' top;Y

means of. the said yside and end Walls in"I poy 2. 'Ihe herein ydescribed concrete groin@ element: comprising` a i boX-like structure` adapted to float over theplace of Ydeposit and comprising parallel sideEWalls, parallel inclined end Walls, the side Walls projecting beyond one end Wall forming a channel: for g the next. adjacent.y element, anda bottom panel Varranged kintermediate'the` top and bottom .edges ot the side Wallssaid` bottom being provided with a hole :therethrough ing and removable for, permitting f the ,filling thereofivith water to permit the deviceito settle and embeditself*.automaticallyfinto adapted tobe plugged temporarily for ,l0at-:

the shore or sea bed substantially to thebot Ward the land.y

tompanel, theend'vvalls being inclined to.Vv

3., In a reinforcedlconcretelgroin, the com-1l bination of a .plurality of interlocking; boxlike elements adapted. to anchor yinto the shore ory ysea bed, each; element` having; "a

transverse floor `With a: holel therein,A a ise-y riesof posts adapted. tojbeattached to the'V i elements, each postl beingso formed as toV straddle one side wall offan element vand having means interlockingwith said bottom:

hole, and a .series oit planks `extending' between .the several post` elements.

f Witnesses: p i i JULES J .'HUMEBIGUEFIL, v J. R. D. BRAY.- v

Washington, IL10. f

Y GERALD .oTLEY CASE. 

